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Chapter 7. Getting Creative with Keys > Types of Alpha Channels

Types of Alpha Channels

There are several different ways to get the same end result of an alpha channel. Fifteen types of transparencies and keys are listed in the Transparency Settings window (including None), as shown in Figure 7.2. This chapter covers the four general categories and explains common useful methods of working with alpha channels in Premiere. The categories include:

  • Luminance keys

  • Chroma keys

  • Matte keys

  • Graphics containing alpha channels


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